I think this makes sense at least for the 6.1 - this model will grab the iphone 6/7/8 5.5 folks and maybe move those still holding on to the 4.7 at a more reasonable priceI don't understand Apple's product strategy.
They're creating a NEW, larger screen size? And this larger size is the budget phone?
How many iPhone screen resolutions is Apple supporting now? There was a time when Apple was hesitant to add more screen resolutions; definitely not the case these days.